MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap * * * * * * * * * * High resolution module, 10 cm Fast conversion down to 1 ms Low power, 1 A (standby < 0.15 A) 3 QFN package 5.0 x 3.0 x 1.0 mm Supply voltage 1.8 to 3.6 V Integrated digital pressure sensor (24 bit ADC) Operating range: 10 to 1200 mbar, -40 to +85 C 2 I C and SPI interface up to 20 MHz No external components (Internal oscillator) Excellent long term stability DESCRIPTION The MS5611-01BA is a new generation of high resolution altimeter sensors from MEAS Switzerland with SPI 2 and I C bus interface. This barometric pressure sensor is optimized for altimeters and variometers with an altitude resolution of 10 cm. The sensor module includes a high linearity pressure sensor and an ultra low power 24 bit ADC with internal factory calibrated coefficients. It provides a precise digital 24 Bit pressure and temperature value and different operation modes that allow the user to optimize for conversion speed and current consumption. A high resolution temperature output allows the implementation of an altimeter/thermometer function without any additional sensor. The MS5611-01BA can be interfaced to virtually any microcontroller. The communication protocol is simple, without the need of programming internal registers in the device. Small dimensions of only 5.0 mm x 3.0 mm and a height of only 1.0 mm allow for integration in mobile devices. This new sensor module generation is based on leading MEMS technology and latest benefits from MEAS Switzerland proven experience and know-how in high volume manufacturing of altimeter modules, which have been widely used for over a decade. The sensing principle employed leads to very low hysteresis and high stability of both pressure and temperature signal. FEATURES FIELD OF APPLICATION TECHNICAL DATA * Mobile altimeter / barometer systems Sensor Performances (V DD = 3 V) * * * * Bike computers Variometers Height sensing for medical alarms Indoor navigation Pressure Range Resolution (1) VDD PS Meas. MUX CSB Digital Interface +IN -IN PGA ADC Sensor Interface IC Unit 1200 mbar 24 bit 0.065 / 0.042 / 0.027 / 0.018 / 0.012 mbar Accuracy 25C, 750 mbar -1.5 +1.5 Error band, -20C to +85C -2.5 +2.5 450 to 1100 mbar (2) 0.5 / 1.1 / 2.1 / 4.1 / Response time (1) 8.22 Long term stability 1 mbar mbar ms mbar/yr Temperature Min Range -40 Typ Max Unit +85 C SCLK Memory (PROM) 128 bits Resolution SGND Accuracy GND DA5611-01BA03_011 000056111624 ECN1742 Max SDI/SDA SDO dig. Filter Typ 10 ADC FUNCTIONAL BLOCK DIAGRAM SENSOR Min <0.01 -0.8 C +0.8 C Notes: (1) Oversampling Ratio: 256 / 512 / 1024 / 2048 / 4096 (2) With autozero at one pressure point www.meas-spec.com 1/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap PERFORMANCE SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Parameter Supply voltage Storage temperature Overpressure Maximum Soldering Temperature Symbol V DD TS P max Conditions T max 40 sec max Min. -0.3 -40 Human Body Model JEDEC standard No 78 ESD rating Latch up Typ. Max +4.0 +125 6 Unit V C bar 250 C -4 +4 kV -100 +100 mA Typ. 3.0 +25 12.5 6.3 3.2 1.7 0.9 1.4 0.02 Max 3.6 +85 Unit V C Typ. 24 8.22 4.13 2.08 1.06 0.54 Max ELECTRICAL CHARACTERISTICS Parameter Operating Supply voltage Operating Temperature Symbol V DD T Conditions Min. 1.8 -40 OSR Supply current (1 sample per sec.) I DD Peak supply current Standby supply current VDD Capacitor 4096 2048 1024 512 256 during conversion at 25C From VDD to GND 100 Conditions Min. A 0.14 mA A nF ANALOG DIGITAL CONVERTER (ADC) Parameter Output Word Symbol OSR Conversion time DA5611-01BA03_011 000056111624 ECN1742 tc 4096 2048 1024 512 256 www.meas-spec.com 2/20 7.40 3.72 1.88 0.95 0.48 9.04 4.54 2.28 1.17 0.60 Unit bit ms Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap PERFORMANCE SPECIFICATIONS (CONTINUED) PRESSURE OUTPUT CHARACTERISTICS (V DD = 3 V, T = 25C UNLESS OTHERWISE NOTED) Parameter Operating Pressure Range Extended Pressure Range Total Error Band, no autozero Total Error Band, autozero at one pressure point Maximum error with supply voltage Long-term stability Recovering time after reflow (1) Conditions P range Full Accuracy Linear Range of P ext ADC at 25C, 700..1100 mbar at 0..50C, 450..1100 mbar at -20..85C, 450..1100 mbar at -40..85C, 450..1100 mbar at 25C, 700..1100 mbar at 10..50C, 450..1100 mbar at -20..85C, 450..1100 mbar at -40..85C, 450..1100 mbar Min. 450 Max 1100 Unit mbar 10 1200 mbar -1.5 -2.0 -3.5 -6.0 -0.5 -1.0 -2.5 -5.0 +1.5 +2.0 +3.5 +6.0 +0.5 +1.0 +2.5 +5.0 V DD = 1.8 V ... 3.6 V OSR 4096 2048 1024 512 256 Resolution RMS Typ. mbar mbar 2.5 mbar 1 7 0.012 0.018 0.027 0.042 0.065 mbar/yr days mbar (1) Time to recovering at least 66% of the reflow impact TEMPERATURE OUTPUT CHARACTERISTICS (V DD = 3 V, T = 25C UNLESS OTHERWISE NOTED) Parameter Absolute Accuracy Maximum error with supply voltage Conditions at 25C -20..85C -40..85C V DD = 1.8 V ... 3.6 V OSR Resolution RMS DA5611-01BA03_011 000056111624 ECN1742 Min. -0.8 -2.0 -4.0 4096 2048 1024 512 256 www.meas-spec.com 3/20 Typ. Max +0.8 +2.0 +4.0 Unit C 0.5 C 0.002 0.003 0.005 0.008 0.012 C Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap PERFORMANCE SPECIFICATIONS (CONTINUED) 2 DIGITAL INPUTS (CSB, I C, DIN, SCLK) Parameter Serial data clock Input high voltage Input low voltage Symbol SCLK V IH V IL I leak25C I leak85C Input leakage current Conditions SPI protocol Pins CSB Min. Typ. 80% V DD 0% V DD at 25C Max 20 100% V DD 20% V DD 0.15 Unit MHz V V A 2 PRESSURE OUTPUTS (I C, DOUT) Parameter Output high voltage Output low voltage Load capacitance DA5611-01BA03_011 000056111624 ECN1742 Symbol V OH V OL C LOAD Conditions I source = 1.0 mA I sink = 1.0 mA Min. 80% V DD 0% V DD www.meas-spec.com 4/20 Typ. Max 100% V DD 20% V DD 16 Unit V V pF Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap FUNCTIONAL DESCRIPTION VDD PS Meas. MUX SENSOR CSB Digital Interface +IN PGA -IN ADC SDI/SDA SDO dig. Filter SCLK Memory (PROM) 128 bits Sensor Interface IC SGND GND Figure 1: Block diagram of MS5611-01BA GENERAL The MS5611-01BA consists of a piezo-resistive sensor and a sensor interface IC. The main function of the MS5611-01BA is to convert the uncompensated analogue output voltage from the piezo-resistive pressure sensor to a 24-bit digital value, as well as providing a 24-bit digital value for the temperature of the sensor. FACTORY CALIBRATION Every module is individually factory calibrated at two temperatures and two pressures. As a result, 6 coefficients necessary to compensate for process variations and temperature variations are calculated and stored in the 128-bit PROM of each module. These bits (partitioned into 6 coefficients) must be read by the microcontroller software and used in the program converting D1 and D2 into compensated pressure and temperature values. SERIAL INTERFACE 2 The MS5611-01BA has built in two types of serial interfaces: SPI and I C. Pulling the Protocol Select pin PS to 2 low selects the SPI protocol, pulling PS to high activates the I C bus protocol. Pin PS Mode High Low IC SPI 2 Pins used SDA SDI, SDO, CSB SPI MODE The external microcontroller clocks in the data through the input SCLK (Serial CLocK) and SDI (Serial Data In). In the SPI mode module can accept both mode 0 and mode 3 for the clock polarity and phase. The sensor responds on the output SDO (Serial Data Out). The pin CSB (Chip Select) is used to enable/disable the interface, so that other devices can talk on the same SPI bus. The CSB pin can be pulled high after the command is sent or after the end of the command execution (for example end of conversion). The best noise performance from the module is obtained when the SPI bus is idle and without communication to other devices during the ADC conversion. DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 5/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap 2 I C MODE The external microcontroller clocks in the data through the input SCLK (Serial CLocK) and SDA (Serial DAta). 2 The sensor responds on the same pin SDA which is bidirectional for the I C bus interface. So this interface type uses only 2 signal lines and does not require a chip select, which can be favorable to reduce board space. In 2 2 I C-Mode the complement of the pin CSB (Chip Select) represents the LSB of the I C address. It is possible to 2 use two sensors with two different addresses on the I C bus. The pin CSB shall be connected to VDD or GND (do not leave unconnected!). COMMANDS The MS5611-01BA has only five basic commands: 1. Reset 2. Read PROM (128 bit of calibration words) 3. D1 conversion 4. D2 conversion 5. Read ADC result (24 bit pressure / temperature) DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 6/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap PRESSURE AND TEMPERATURE CALCULATION Start Maximum values for calculation results: PMIN = 10mbar PMAX = 1200mbar TMIN = -40C TMAX = 85C TREF = 20C Convert calibration datadata into coefficients (see bit pattern W1 to W4) Read calibration (factory calibrated) from of PROM Variable Description | Equation Recommended variable type Size [1] [bit] min max Example / Typical Value C1 Pressure sensitivity | SENST1 unsigned int 16 16 0 65535 40127 C2 Pressure offset | OFFT1 unsigned int 16 16 0 65535 36924 C3 Temperature coefficient of pressure sensitivity | TCS unsigned int 16 16 0 65535 23317 C4 Temperature coefficient of pressure offset | TCO unsigned int 16 16 0 65535 23282 C5 Reference temperature | TREF unsigned int 16 16 0 65535 33464 C6 Temperature coefficient of the temperature | TEMPSENS unsigned int 16 16 0 65535 28312 Read digitalpressure pressure and and temperature data Read digital temperature data D1 Digital pressure value unsigned int 32 24 0 16777216 9085466 D2 Digital temperature value unsigned int 32 24 0 16777216 8569150 2366 Calculate temperature dT Difference between actual and reference temperature [2] dT = D2 - TREF = D2 - C5 * 2 8 signed int 32 25 -16776960 16777216 TEMP Actual temperature (-40...85C with 0.01C resolution) TEMP = 20C + dT * TEMPSENS = 2000 + dT * C6 / 223 signed int 32 41 -4000 8500 2007 = 20.07 C Calculate temperature compensated compensated pressure Calculate temperature pressure OFF Offset at actual temperature [3] OFF = OFFT1 + TCO * dT = C2 * 216 + (C4 * dT ) / 27 signed int 64 41 -8589672450 12884705280 2420281617 SENS Sensitivity at actual temperature [4] SENS = SENST1 + TCS * dT = C1 * 2 15 + (C3 * dT ) / 28 signed int 64 41 -4294836225 6442352640 1315097036 P Temperature compensated pressure (10...1200mbar with 0.01mbar resolution) P = D1 * SENS - OFF = (D1 * SENS / 2 21 - OFF) / 2 15 signed int 32 58 1000 120000 100009 = 1000.09 mbar Display pressure and temperature value Notes [1] [2] [3] [4] Maximal size of intermediate result during evaluation of variable min and max have to be defined min and max have to be defined min and max have to be defined Figure 2: Flow chart for pressure and temperature reading and software compensation. DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 7/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap SECOND ORDER TEMPERATURE COMPENSATION No Yes TEMP<20C Low temperature Low temperature 2 High temperature 31 T2 = 0 OFF2 = 0 SENS2 = 0 T2 = dT / 2 2 1 OFF2 = 5 (TEMP - 2000) / 2 SENS2 = 5 (TEMP - 2000)2/ 22 Yes No TEMP<-15C Low temperature Very low temperature OFF2 = OFF2 + 7 (TEMP + 1500)2 2 1 SENS2 = SENS2 + 11 (TEMP + 1500) / 2 Calculate pressure and temperature TEMP = TEMP - T2 OFF = OFF - OFF2 SENS = SENS - SENS2 Figure 3: Flow chart for pressure and temperature to the optimum accuracy. DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 8/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap SPI INTERFACE COMMANDS Size of each command is 1 byte (8 bits) as described in the table below. After ADC read commands the device will return 24 bit result and after the PROM read 16bit result. The address of the PROM is embedded inside of the PROM read command using the a2, a1 and a0 bits. Bit number Bit name Command Reset Convert D1 (OSR=256) Convert D1 (OSR=512) Convert D1 (OSR=1024) Convert D1 (OSR=2048) Convert D1 (OSR=4096) Convert D2 (OSR=256) Convert D2 (OSR=512) Convert D2 (OSR=1024) Convert D2 (OSR=2048) Convert D2 (OSR=4096) ADC Read PROM Read Command byte 0 1 2 PR COV M 3 Typ 4 5 6 7 Ad2/ Ad1/ Ad0/ Stop Os2 Os1 Os0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 1 1 1 1 0 0 1 0 0 0 0 1 0 0 0 0 1 0 Ad2 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 hex value 1 0 0 1 1 0 0 0 1 1 0 0 Ad1 1 0 1 0 1 0 0 1 0 1 0 0 Ad0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x1E 0x40 0x42 0x44 0x46 0x48 0x50 0x52 0x54 0x56 0x58 0x00 0xA0 to 0xAE Figure 4: Command structure RESET SEQUENCE The Reset sequence shall be sent once after power-on to make sure that the calibration PROM gets loaded into the internal register. It can be also used to reset the device ROM from an unknown condition Figure 5: Reset command sequence SPI mode 0 DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 9/20 Oct. 26, 2012 MS5611-01BA03 0 Barometric Pressure Sensor, with stainless steel cap 1 2 3 4 5 6 7 SCLK CSB SDI 2.8ms RELOAD SDO PS Figure 6: Reset command sequence SPI mode 3 CONVERSION SEQUENCE The conversion command is used to initiate uncompensated pressure (D1) or uncompensated temperature (D2) conversion. The chip select can be disabled during this time to communicate with other devices. After the conversion, using ADC read command the result is clocked out with the MSB first. If the conversion is not executed before the ADC read command, or the ADC read command is repeated, it will give 0 as the output result. If the ADC read command is sent during conversion the result will be 0, the conversion will not stop and the final result will be wrong. Conversion sequence sent during the already started conversion process will yield incorrect result as well. 0 1 2 3 4 5 6 7 SCLK CSB SDI 8.22ms ADC CONVERSION SDO PS Figure 7: Conversion out sequence, Typ=d1, OSR = 4096 Figure 8: ADC Read sequence PROM READ SEQUENCE The read command for PROM shall be executed once after reset by the user to read the content of the calibration PROM and to calculate the calibration coefficients. There are in total 8 addresses resulting in a total memory of 128 bit. Address 0 contains factory data and the setup, addresses 1-6 calibration coefficients and address 7 contains the serial code and CRC. The command sequence is 8 bits long with a 16 bit result which is clocked with the MSB first. DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 10/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap Figure 9: PROM Read sequence, address = 011 (Coefficient 3). I2C INTERFACE COMMANDS 2 Each I C communication message starts with the start condition and it is ended with the stop condition. The MS5611-01BA address is 111011Cx, where C is the complementary value of the pin CSB. Since the IC does 2 not have a microcontroller inside, the commands for I C and SPI are quite similar. RESET SEQUENCE The reset can be sent at any time. In the event that there is not a successful power on reset this may be caused by the SDA being blocked by the module in the acknowledge state. The only way to get the MS5611-01BA to function is to send several SCLKs followed by a reset sequence or to repeat power on reset. 1 1 1 0 1 1 CSB 0 0 0 0 0 1 1 1 1 0 0 Device Address command S Device Address W A cmd byte A P From Master From Slave S = Start Condition P = Stop Condition W = Write R = Read A = Acknowledge N = Not Acknowledge 2 Figure 10: I C Reset Command PROM READ SEQUENCE The PROM Read command consists of two parts. First command sets up the system into PROM read mode. The second part gets the data from the system. 2 Figure 11: I C Command to read memory address= 011 (Coefficient 3) 1 1 1 0 1 1 CSB 1 0 1 1 0 0 X X X X 0 X X X X X X X X 0 Device Address data data S Device Address R A Memory bit 15 - 8 A Memory bit 7 - 0 N P From Master From Slave S = Start Condition P = Stop Condition W = Write R = Read A = Acknowledge N = Not Acknowledge 2 Figure 12: I C answer from MS5611-01BA DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 11/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap CONVERSION SEQUENCE A conversion can be started by sending the command to MS5611-01BA. When command is sent to the system it stays busy until conversion is done. When conversion is finished the data can be accessed by sending a Read command, when an acknowledge appears from the MS5611-01BA, 24 SCLK cycles may be sent to receive all result bits. Every 8 bit the system waits for an acknowledge signal. 1 1 1 0 1 1 CSB 0 0 0 1 0 0 1 0 0 0 0 Device Address command S Device Address W A cmd byte A P From Master From Slave S = Start Condition P = Stop Condition W = Write R = Read A = Acknowledge N = Not Acknowledge 2 Figure 13: I C Command to initiate a pressure conversion (OSR=4096, typ=D1) 1 1 1 0 1 1 CSB 0 0 0 0 0 0 0 0 0 0 0 Device Address command S Device Address W A cmd byte A P From Master From Slave S = Start Condition P = Stop Condition W = Write R = Read A = Acknowledge N = Not Acknowledge 2 Figure 14: I C ADC read sequence 1 1 1 0 1 1 CSB 1 0 X X X X X X X X 0 X X X X X X X X 0 X X X X X X X X 0 Device Address data data data S Device Address R A Data 23-16 A Data 8 - 15 A Data 7 - 0 N P From Master From Slave S = Start Condition P = Stop Condition W = Write R = Read A = Acknowledge N = Not Acknowledge 2 Figure 15: I C answer from MS5611-01BA CYCLIC REDUNDANCY CHECK (CRC) MS5611-01BA contains a PROM memory with 128-Bit. A 4-bit CRC has been implemented to check the data validity in memory. The application note AN520 describes in detail CRC-4 code used. A d d 0 1 2 3 4 5 6 7 D B 1 5 D B 1 4 D B 1 3 D B 1 2 D B 1 1 D D D D D D D D D D D B B B B B B B B B B B 1 9 8 7 6 5 4 3 2 1 0 0 16 bit reserved for manufacturer Coefficient 1 (16 bit unsigned) Coefficient 2 (16 bit unsigned) Coefficient 3 (16 bit unsigned) Coefficient 4 (16 bit unsigned) Coefficient 5 (16 bit unsigned) Coefficient 6 (16 bit unsigned) CRC Figure 16: Memory PROM mapping DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 12/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap APPLICATION CIRCUIT The MS5611-01BA is a circuit that can be used in conjunction with a microcontroller in mobile altimeter applications. It is designed for low-voltage systems with a supply voltage of 3 V. MS5611-01BA MS5611-01BA 2 Figure 17: Typical application circuit with SPI / I C protocol communication DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 13/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap PIN CONFIGURATION Pin Name Type Function 1 VDD P Positive supply voltage 2 PS I Protocol select 2 PS high (VDD) I C PS low (GND) SPI 3 GND G Ground CSB I Chip select (active low), internal connection SDO O Serial data output 7 SDI / SDA I / IO Serial data input / 2 I C data IO 8 SCLK I Serial data clock 4 5 6 DEVICE PACKAGE OUTLINE Figure 18: MS5611-01BA03 package outline DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 14/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap RECOMMENDED PAD LAYOUT Pad layout for bottom side of the MS5611-01BA soldered onto printed circuit board. Reserved area: Please do not route tracks between pads SHIPPING PACKAGE DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 15/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap MOUNTING AND ASSEMBLY CONSIDERATIONS SOLDERING Please refer to the application note AN808 available on our website for all soldering issues. MOUNTING The MS5611-01BA can be placed with automatic Pick & Place equipment using vacuum nozzles. It will not be damaged by the vacuum. Due to the low stress assembly the sensor does not show pressure hysteresis effects. It is important to solder all contact pads. CONNECTION TO PCB The package outline of the module allows the use of a flexible PCB for interconnection. This can be important for applications in watches and other special devices. CLEANING The MS5611-01BA has been manufactured under cleanroom conditions. It is therefore recommended to assemble the sensor under class 10'000 or better conditions. Should this not be possible, it is recommended to protect the sensor opening during assembly from entering particles and dust. To avoid cleaning of the PCB, solder paste of type "no-clean" shall be used. Cleaning might damage the sensor! ESD PRECAUTIONS The electrical contact pads are protected against ESD up to 4 kV HBM (human body model). It is therefore essential to ground machines and personnel properly during assembly and handling of the device. The MS5611-01BA is shipped in antistatic transport boxes. Any test adapters or production transport boxes used during the assembly of the sensor shall be of an equivalent antistatic material. DECOUPLING CAPACITOR Particular care must be taken when connecting the device to the power supply. A 100 nF ceramic capacitor must be placed as close as possible to the MS5611-01BA VDD pin. This capacitor will stabilize the power supply during data conversion and thus, provide the highest possible accuracy. DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 16/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap TYPICAL PERFORMANCE CHARACTERISTICS ADC-value D1 vs Pressure (typical) 10000000 9000000 ADC-value D1 (LSB) 8000000 7000000 -40C 20C 85C 6000000 5000000 4000000 3000000 0 100 200 300 400 500 600 700 800 900 1000 1100 Pressure (mbar) ADC-value D2 vs Temperature (typical) 12000000 11000000 ADC-value D2 (LSB) 10000000 9000000 8000000 7000000 6000000 5000000 4000000 -40 -20 0 20 40 60 80 100 120 Temperature (C) DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 17/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED) Absolute Pressure Accuracy after Calibration, 2nd order compensation 2 1.5 85C 60C 20C 1 0C Pressure error (mbar) -40C 85C(85C) Poly. 0.5 60C(60C) Poly. 20C(20C) Poly. 0 300 Poly. 0C (0C) 400 500 600 700 800 900 1000 1100 Poly. (-40C) -40C -0.5 -1 -1.5 -2 Pressure (mbar) Pressure Error Accuracy vs temperature (typical) 28 26 24 22 20 Pressure error (mbar) 18 16 Perror(1000,1st order) 14 Perror(1000,2nd order) 12 Perror(800,1st order) 10 Perror(800,2nd order) Perror(450,1st order) 8 Perror(450,2nd order) 6 4 2 0 -2 -4 -40 -20 0 40 20 60 80 Temperature (C) Temperature Error Accuracy vs temperature (typical) 15 Temperature error (C) 10 Temperature error (standard calculation) Temperature error (with 2nd order calculation) 5 0 -5 -40 -20 0 20 40 60 80 100 120 Temperature (C) DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 18/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED) DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 19/20 Oct. 26, 2012 MS5611-01BA03 Barometric Pressure Sensor, with stainless steel cap ORDERING INFORMATION Product Code MS5611-01BA03 MS5611-01BA03 Product Barometric Pressure Sensor Thin Metal Cap Barometric Pressure Sensor Thin Metal Cap Art. No Delivery Form MS561101BA03-00 Waffle pack MS561101BA03-50 Tape and reel FACTORY CONTACTS NORTH AMERICA EUROPE Measurement Specialties 45738 Northport Loop West Fremont, CA 94538 MEAS Switzerland Sarl Ch. Chapons-des-Pres 11 CH-2022 Bevaix Tel: +1 800 767 1888 Fax: +1 510 498 1578 e-mail: pfg.cs.amerameas-spec.com Website: www.meas-spec.com Tel: +41 32 847 9550 Fax: + 41 32 847 9569 e-mail: sales.chameas-spec.com Website: www.meas-spec.com ASIA Measurement Specialties (China), Ltd. No. 26 Langshan Road Shenzhen High-Tech Park (North) Nanshan District, Shenzhen, 518057 China Tel: +86 755 3330 5088 Fax: +86 755 3330 5099 e-mail: pfg.cs.asiaameas-spec.com Website: www.meas-spec.com The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer's technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. DA5611-01BA03_011 000056111624 ECN1742 www.meas-spec.com 20/20 Oct. 26, 2012 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TE Connectivity: MS561101BA03-50